Hello again! This time bring a very quick project, using the Educational Boosterpack MKII of Texas Instruments and the famous MSP432 microcontroller. |
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Using the LCD SPI of EDU MKII to show the waveform of the cardiac signal which is previously sampled by the analog digital converter of the MSP432. |
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Used: An amplifier circuit instrumentation, inside the board there is an amplifier with a higher gain than 1000V/V for the cardiac signal and a Filter Notch to reject noise of 60 Hz which is emitted by the environment in which the patient.
The microcontroller sampling the waveform every 6 milliseconds, taking 256 values of the cardiac signal and stores them in its memory RAM, then applying a digital trigger allowing a repeatability in the form of heart wave. |
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Schematic
Board
VIDEO (SPANISH)
Note: Attached circuit schematics and programming in the IDE Energia.nu
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